EP0865622A2 - Verschlussteil - Google Patents
VerschlussteilInfo
- Publication number
- EP0865622A2 EP0865622A2 EP96946068A EP96946068A EP0865622A2 EP 0865622 A2 EP0865622 A2 EP 0865622A2 EP 96946068 A EP96946068 A EP 96946068A EP 96946068 A EP96946068 A EP 96946068A EP 0865622 A2 EP0865622 A2 EP 0865622A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- closure part
- sleeve
- sealing element
- sealing
- part according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 59
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 230000008878 coupling Effects 0.000 abstract description 21
- 238000010168 coupling process Methods 0.000 abstract description 21
- 238000005859 coupling reaction Methods 0.000 abstract description 21
- 239000013307 optical fiber Substances 0.000 abstract description 5
- 230000001464 adherent effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 15
- 239000007788 liquid Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
- G02B6/3847—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces
- G02B6/3849—Details of mounting fibres in ferrules; Assembly methods; Manufacture with means preventing fibre end damage, e.g. recessed fibre surfaces using mechanical protective elements, e.g. caps, hoods, sealing membranes
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4292—Coupling light guides with opto-electronic elements the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/36—Mechanical coupling means
- G02B6/38—Mechanical coupling means having fibre to fibre mating means
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/389—Dismountable connectors, i.e. comprising plugs characterised by the method of fastening connecting plugs and sockets, e.g. screw- or nut-lock, snap-in, bayonet type
- G02B6/3893—Push-pull type, e.g. snap-in, push-on
Definitions
- the invention relates to a closure part with a sleeve which is designed to receive an optical coupling socket and which closely encloses the outside of the socket.
- Suitable locking parts are used to securely close the receptacles for optical fibers on electro-optical modules from the manufacturing process to the start-up of the module.
- the locking parts are intended to close the receptacles in a dirt and water-tight manner and to maintain a safe and defined functional position.
- self-soiling of the receptacle by the use of the closure part should be excluded and the drainage of liquid should be made possible when the module is tested for gross leakage and cleaned.
- US Pat. No. 5,243,678 describes a protective plug for closing an electro-optical module.
- a cover flange is attached to a handle and carries at least one parallel alignment pin.
- the end face of the alignment pin is adapted to depressions of an optically active component.
- the alignment pin is surrounded by a collar which is attached to the cover flange and which carries pressing webs on its outside.
- the alignment pin completely penetrates a receptacle of the electro-optical module when plugged in.
- a receptacle of the module, in which the receptacle is located encloses the collar of the protective plug, the protective plug being fixed in the receptacle by the press ridges.
- the tapping flange seals the front of the receiving bay completely.
- the alignment pin emerges from the rear end of the receptacle and aligns an optically active component with its end face out. This preliminary alignment takes place in order to be able to permanently fix the optically active component aligned in the module.
- the protective plug is also intended to protect the optically active component and the receptacle from contamination. However, the protective plug cannot prevent self-contamination, since it protrudes through the receptacle to the optically active component. Protection against water is also insufficiently guaranteed.
- a protective cap for optical fiber plug connections is described in EP-0 312 147 A2.
- the protective cap provides connection surfaces for a coupling part and a plug on both sides of an intermediate body.
- the connecting surfaces are axially opposite one another and enable the coupling part and the plug to be received simultaneously.
- the protective cap essentially only prevents dust from depositing on the sensitive face of the fiber optic cable in the connector or in the coupling. This protective cap is not waterproof.
- a closure part of the type mentioned is described in US Pat. No. 4,640,575 in the form of a protective cap for a socket for receiving optical fibers.
- the socket is attached to a base plate.
- the protective cap is also attached to the base plate and has a resilient mounting. If the socket is not connected to a plug, the protective cap, which is made of an elastic material, covers the outside of the socket from dust. If an optical fiber plug is removed from the socket, the protective cap snaps over
- the protective cap can be firmly pressed onto the socket by additional axial force.
- This protective cap is unsuitable for electro-optical modules with receiving bays and does not guarantee adequate protection against moisture.
- the present invention is therefore based on the object of providing a closure part of the type mentioned at the outset which closes the receptacle for optical waveguides on electro-optical modules in a dirt-and watertight manner, maintains a safe and defined functional position, prevents self-contamination and prevents the drainage of liquid Coarse leak testing and cleaning of the module enabled.
- a closure part of the type mentioned at the outset a central sealing element being arranged coaxially with the sleeve, a front bevel of the sealing element being flatly adapted to the facing front edge of the socket, and the sleeve projecting beyond the end face of the sealing element , the length of the
- Sealing element is dimensioned so that when the closure part is inserted, the chamfer of the sealing element presses axially against the end face of the bush.
- the sleeve guarantees a demonstration of the closure part axially to the coupling bush and ensures a secure functional position of the closure part.
- the tight fit of the sleeve, which lies tightly against the outer surface of the sleeve, serves on the one hand for sealing purposes and on the other hand for firm
- the sealing element is made of soft plastic as a sealing plug.
- the outside diameter of the stopper is larger than the inside diameter of the socket, so that the chamfer of the stopper touches the front edge of the socket.
- the plug is pressed against the coupling sleeve by axial pressure. Radially enveloping the stopper is the sleeve, which, however, ensures sufficient space for radial expansion of the stopper as a result of the axial pressure.
- the sleeve has at least one sealing area which firmly surrounds the outer edge of the coupling bush and reliably protects it against dust and moisture.
- the double-surface sealing of the coupling bush by the sealing element on the front edge and by the sleeve on the outer border of the coupling bush, which is shaped as a receptacle for an optical fiber-carrying plug, guarantees particularly effective protection.
- a particularly simply constructed closure part is, according to the invention, made in one piece from a suitable soft and elastic plastic. The sleeve and the sealing element can thus advantageously and effectively protect the coupling bush.
- a multi-part embodiment of the closure part is also possible.
- the sealing element is made of a more elastic plastic than the base body.
- the sleeve can also be made of an elastic plastic, but a firmer material is preferred.
- the sleeve can advantageously carry sealing means arranged on the inside, which also enable a more favorable sealing effect for better fixing of the closure part.
- Em particularly preferred material is silicone rubber, the z. B. is commercially available under the trade name SILOPREN from Bayer.
- the base body carries clamping ribs in its rear region adjoining a stop flange. These serve to further fix and align the closure part.
- the cavities formed by the clamping ribs and the receiving bay and aligned with the longitudinal axis of the closure part permit the outflow of liquid which has penetrated into the receiving bay.
- the closure part according to the invention guarantees reliable protection of the coupling bush against liquid and dust and, in a particularly advantageous manner, allows liquid that has penetrated into the receiving bay to flow off.
- the locking part can be locked to an electro-optical module in an advantageous manner by abutment of locking surfaces on the locking arms on the module side with suitable receiving surfaces on the locking part.
- the receiving surfaces on the closure part can be both on the sleeve, but also are on a basic body.
- the sleeve is advantageously designed so that it has recesses for receiving the locking arms.
- An additional and thus particularly effective fastening means are provided on the locking part of the locking surfaces. These additionally engage in the locking surfaces of the locking arms on the module side and ideally fix the locking part in the receptacle.
- a plurality of different coupling points can be closed by means of the locking surfaces on the closure part side and / or by means of receiving surfaces located on the closure part.
- FIG. 1 shows a closure part according to the invention
- FIG. 2 shows a further closure part according to the invention in a perspective view
- FIG. 3 shows a closure part according to the invention which closes a coupling bushing in an SC bay
- Figure 4 shows a closure part for two receptacles and Figure 5 shows the same closure part m rare.
- FIG. 1 shows a closure part 1 according to the invention with a handle 2 and a stop flange 3 which adjoins the handle 2.
- the base 3 is connected to the base body 10, which is approximately rectangular in cross section. This carries on the stop flange 3 beginning and parallel to the figure axis 12 aligned clamping ribs lla-lld.
- the basic body 10 merges in its part facing away from the stop flange 3 into a sleeve 6 with a circular cross section.
- the sleeve 6 coaxially surrounds a central sealing element 4 with a front bevel 5 and projects beyond the end face 9 of the sealing element 4.
- the chamfer 5 is an end face
- FIG. 2 illustrates em inventive closure part Perspecti ⁇ represents Visch.
- the reference numerals are similar to those of Figure 1 iden ⁇ table.
- the sleeve 6 is shown rectangular in its front area in the outer cross section, but can also have a different, in particular round, cross section.
- the outer cross section of the sleeve 6 can also be designed differently. For example, a round or circular design in the front area of the sleeve 6 is advantageous, but an approximately rectangular shape for the rear area.
- recessed recesses 7 Starting at the base body 10 and continuing to the sleeve, recessed recesses 7 on two sides for receiving coupling-side locking arms.
- the recesses 7 are delimited on one of their sides by receiving surfaces 8 which run approximately perpendicular to the figure axis 12 m.
- the receiving surfaces 8 enable an abutment of locking arms on the coupling side and additionally stabilize the closure part 1.
- FIG. 3 illustrates the sealing effect of a closure part according to the invention.
- the closure part 1 is inserted with its sleeve 18 and its sealing element 15 into the SC bay 21 of an electro-optical module 20 and closes the coupling socket 22 for optical waveguides located in the bay 21.
- the sleeve 18 encloses the outer edge 24 of the socket 22 in a tight fit and thereby fixes the closure part 1 in the SC bay 21 and seals the socket 22.
- the sealing effect is advantageously supplemented with the chamfer 5 of the sealing element 15. Since the sealing element 15 does not protrude into the coupling bush 22, self-contamination by dirt particles adhering to the sealing element 15 is excluded.
- the inner wall 25 of the socket 22, which serves to receive the optical waveguide pin, is not touched and dirt is deposited on the inner wall 25.
- the sealing element 15 Under the influence of pressure A in the direction of the socket 22, the sealing element 15 is pressed against the front edge 23 of the socket. This provides optimal protection. Due to the firmly adhering seat of the sleeve 18 on the outer side 24 of the bushing 22, the pressure A is transmitted to the sealing plug 15.
- supporting arms and / or a clamping connection between the clamping ribs (not shown) of the base body 10 reaching into the bay and the front edge 28 of the SC bay 21 or other suitable fastening means act in the recesses 7 .
- the sealing element 15 shown here as a sealing plug expands radially.
- the starting point of the sleeve 18 extends deeper into the basic body 10.
- the sealing plug 15 is formed in one piece with the sleeve 18 from an elastic plastic. A two-part design of the plug 15 and the sleeve 18 is also possible.
- sealing means 17 running around the inner wall 19 of the sleeve 18.
- the sealing means 17 encompass the outside 24 of the coupling bushing 22.
- the closure part 1 is additionally fixed radially.
- the sealing means 17 is advantageously formed as a sealing ring partially inserted into the inner wall 19 of the sleeve 18.
- FIG. 4 shows a closure part for two receptacles located next to one another.
- the sleeve 18 is formed on two sides surrounding locking surfaces 40. Since the locking surfaces 40 at least partially limit, the clamping ribs 11a - 11b are arranged on the outside of the locking surfaces 40. The clamping rib 11c, however, is attached to the base body 10. To abut the module-side locking arms 26, the locking surfaces 40 have projections 42 (not visible). The projections 42 interact with the elevations 27 of the locking arms 26 on the module side.
- the locking surfaces 40 can be made in one piece with the base body 10 from the same material, or formed in two parts from different materials.
- FIG. 5 illustrates the interaction of the projections 42 of the locking surfaces 40 with the elevations 27 of the latching arms 26.
- the locking surfaces 40 with the elevations 27 are hooked by the front edge 41 of the projections 42. Laterally, only indicated schematically, the recesses 7 and the receiving surfaces 8 of the sleeve 18 are visible.
- the closure part is held in the SC bay 21 by the pressing action of the clamping ribs 11a - 11c.
- the coupling bush 22 is almost completely covered by the locking arms 26.
- the design of the component is selected such that the closure part 1 is released from the bay 21 with a reasonable amount of force and without material-stressing loading.
- the locking surfaces are separated from each other.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19547523 | 1995-12-08 | ||
DE19547523A DE19547523C1 (de) | 1995-12-08 | 1995-12-08 | Verschlußteil |
PCT/DE1996/002377 WO1997022026A2 (de) | 1995-12-08 | 1996-12-04 | Verschlussteil |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0865622A2 true EP0865622A2 (de) | 1998-09-23 |
EP0865622B1 EP0865622B1 (de) | 1999-07-21 |
Family
ID=7780619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96946068A Expired - Lifetime EP0865622B1 (de) | 1995-12-08 | 1996-12-04 | Verschlussteil |
Country Status (6)
Country | Link |
---|---|
US (1) | US6088502A (de) |
EP (1) | EP0865622B1 (de) |
JP (1) | JP2000501849A (de) |
CA (1) | CA2239863A1 (de) |
DE (2) | DE19547523C1 (de) |
WO (1) | WO1997022026A2 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20010028771A1 (en) * | 2000-03-02 | 2001-10-11 | Claes Johansson | Protective cover for an optical transceiver |
DE10054371C1 (de) * | 2000-10-30 | 2002-02-28 | Infineon Technologies Ag | Vorrichtung zur Abdichtung einer Kopplungseinheit für ein opto-elektronisches Bauelement gegen Verunreinigungen |
US7101300B2 (en) * | 2001-01-23 | 2006-09-05 | Black & Decker Inc. | Multispeed power tool transmission |
US6516129B2 (en) | 2001-06-28 | 2003-02-04 | Jds Uniphase Corporation | Processing protective plug insert for optical modules |
US6652159B2 (en) | 2001-06-28 | 2003-11-25 | International Business Machines Corporation | Enhanced optical transceiver arrangement |
US6676301B2 (en) | 2001-06-28 | 2004-01-13 | International Business Machines Corporation | Enhanced optical coupler |
US7186038B2 (en) * | 2003-12-29 | 2007-03-06 | Adc Telecommunications, Inc. | Telecommunications connector protective device |
US7278789B2 (en) * | 2005-09-08 | 2007-10-09 | Tyco Telecommunications (Us) Inc. | Undersea equipment housing with molded terminations |
JP2013011633A (ja) * | 2009-10-27 | 2013-01-17 | Alps Electric Co Ltd | 保護キャップ |
JP6200184B2 (ja) * | 2013-04-01 | 2017-09-20 | 矢崎総業株式会社 | 防塵キャップ |
JP6409288B2 (ja) * | 2014-03-03 | 2018-10-24 | 住友電気工業株式会社 | 光トランシーバ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1094369A (en) * | 1975-11-11 | 1981-01-27 | Peter K. Runge | Optical fiber connector and method of making |
GB1544266A (en) * | 1976-03-16 | 1979-04-19 | Standard Telephones Cables Ltd | Connector arrangement for optical fibres |
US4640575A (en) * | 1986-01-13 | 1987-02-03 | Rockwell International Corporation | Fiber optic connector cover apparatus |
DE3735038A1 (de) * | 1987-10-16 | 1989-04-27 | Philips Patentverwaltung | An einem stecker bzw. einer kupplung einer steckverbindung anordbare schutzkappe |
WO1990004801A1 (en) * | 1988-10-27 | 1990-05-03 | Kabushiki Kaisha Komatsu Seisakusho | Optical connector device |
DE3925535C1 (en) * | 1989-08-02 | 1991-01-17 | Ant Nachrichtentechnik Gmbh, 7150 Backnang, De | Light-wave conductor coupling e.g. for railway tracks - has gap between 2 conductors not so narrow that it causes capillary effect when water gets into it |
US5243678A (en) * | 1992-06-29 | 1993-09-07 | Amp Incorporated | Alignment cover for a fiber optic receptacle |
US5395360A (en) * | 1994-02-23 | 1995-03-07 | Coherent, Inc. | Damage resistant sterilizable fiber optic probe assembly |
US5684903A (en) * | 1994-06-30 | 1997-11-04 | Hamamatsu Photonics K.K. | Receptacle and method of manufacturing the same |
US5647044A (en) * | 1995-12-22 | 1997-07-08 | Lucent Technologies Inc. | Fiber waveguide package with improved alignment means |
-
1995
- 1995-12-08 DE DE19547523A patent/DE19547523C1/de not_active Expired - Fee Related
-
1996
- 1996-12-04 DE DE59602501T patent/DE59602501D1/de not_active Expired - Fee Related
- 1996-12-04 CA CA002239863A patent/CA2239863A1/en not_active Abandoned
- 1996-12-04 JP JP9521615A patent/JP2000501849A/ja active Pending
- 1996-12-04 WO PCT/DE1996/002377 patent/WO1997022026A2/de active IP Right Grant
- 1996-12-04 EP EP96946068A patent/EP0865622B1/de not_active Expired - Lifetime
-
1998
- 1998-06-08 US US09/093,571 patent/US6088502A/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9722026A2 * |
Also Published As
Publication number | Publication date |
---|---|
JP2000501849A (ja) | 2000-02-15 |
WO1997022026A2 (de) | 1997-06-19 |
CA2239863A1 (en) | 1997-06-19 |
WO1997022026A3 (de) | 1997-08-07 |
EP0865622B1 (de) | 1999-07-21 |
DE19547523C1 (de) | 1997-05-07 |
DE59602501D1 (de) | 1999-08-26 |
US6088502A (en) | 2000-07-11 |
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